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RDKEMW-18141:Update isApparmorProfileLoaded() to avoid audit logs in kernel version #464

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RDKEMW-18141:Update isApparmorProfileLoaded() to avoid audit logs in kernel version #464

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48 changes: 29 additions & 19 deletions bundle/lib/source/DobbyConfig.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -791,31 +791,41 @@ bool DobbyConfig::updateBundleConfig(const ContainerId& id, std::shared_ptr<rt_d

bool DobbyConfig::isApparmorProfileLoaded(const char *profile) const
{
DIR *d = NULL;
bool status = false;
int fd = open("/proc/self/attr/current", O_WRONLY);
struct dirent *cur_dir = NULL;
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size_t profile_len = strlen(profile);

if (fd < 0)
{
AI_LOG_ERROR("/proc/self/attr/current open failed");
return status;
d = opendir("/sys/kernel/security/apparmor/policy/profiles/");
if(!d) {
AI_LOG_SYS_ERROR(errno, "opendir() failed on apparmorfs policy directory.");
return false;
}
char profile_name[256];
snprintf(profile_name, sizeof(profile_name), "permprofile %s", profile);

if (write(fd, profile_name, strlen(profile_name)) < 0)
{
if (errno == ENOENT)
AI_LOG_INFO("Apparmor profile [%s] doesn't exist", profile);
else
AI_LOG_ERROR("/proc/self/attr/current write failed");

errno = 0;
while((cur_dir = readdir(d)) != NULL) {
if(strlen(cur_dir->d_name) >= (profile_len + 2)) {
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if(!strncmp(cur_dir->d_name, profile, profile_len) &&
cur_dir->d_name[profile_len] == '.' &&
isdigit(cur_dir->d_name[profile_len + 1])) {
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status = true;
AI_LOG_INFO("AppArmor profile [%s] is loaded.", profile);
break;
}
}
}
else
{
status = true;
AI_LOG_INFO("Apparmor profile [%s] is loaded", profile);

if(!status) {
AI_LOG_INFO("AppArmor profile [%s] not found.", profile);
}

close(fd);
if(!cur_dir && errno) {
AI_LOG_SYS_ERROR(errno, "readdir() failed on apparmorfs policy directory");
}

closedir(d);

return status;
}

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